Gas or vapor engine, particularly steam engine



May 11 1926.

C. L. COOK GS 0R VAPOR ENGINE, PARTICULARLY STEAM ENGINE Filed Jan. 24.1921 2 Sheets-Shut 1 mrt/via (har/es [ee Cao/ 5y @uw WM IWW.

May 11 192e. 1,584,614

C. L. COOK f GAS OR VAPOR ENGINE, PARTICULARLY STEAM ENGINE Filed Jan.24. 1921 2 Sheets-Sheet 2 gwunfof/ .A Zesl Cbok Patented May 11, 1926.

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GHARLES 006K, OF LOUISVLLE, KENTUCKY.

Application led January 24, 19551. Serial No. 439,603.

My invention relates particularly to compound steam or gas or vaporengines, and more especially to those used on locomotives. lt has forits objects to improve the efficiency and adaptability of compound gasor vapor origines.

ln the drawing Figure 1 is a vertical longitudinal section in partelevation of an embodiment of my invention in a locomotive.

Figure 2 is a longitudinal sectional view showing the convertiblevalveshifted into the position it will occupy when the engine isoperating compound.

Figure 3 is a cross sectional view talren on the line 3-3 of Figure 1. o

In the main steam chest 1, I place the reciprocative valve 2, manuallyoperated to a plurality of fixed positions by connections including arod 3 from beyond the end of the chest 1, and provided with a pluralityoi openings 13 to 17 inclusive positioned' with respect to the openings22 to 26 in the steam chest 1, as l am about to describe. `The valveseat in and integral with steam chest 1 also contains exhaust cavities27 and 28.

Each of the openings 22 to 26 inclusive and the cavities 2'? and 28 lconnect respectively by pairs ofrpipes 4 to 9 inclusive with openings 29to 34 inclusive in each of the valve chambers 10 on opposite sides ofthe locomotive.

Each valve chamber 10 contains the six discs 35 to i0 inclusive, whichare connected and positioned by the tube 11, all being reciprocated bythe rod 12I extending beyond the valve chest 10 and reciprocated by theusual valve gear of the locomotive.

Preferably integral. with the valve chamber 10, is the compound cylinderconsisting of the central cylinder 18 of larger diameter and the twocylinders 19 of smaller diameter extending axially from each endthereof. In the central cylinder 18 is the double-faced piston 20, andextending from each end thereof and fixed thereto are the pistons 21, ofsmaller diameter, preferably hollow, and of sufficient length tomaintain a constant bearing in each smaller cylinder and perform thefunctions of a piston rod over that distance. Fixed to one of thepistons 21 is the main piston rod 11.

At the longitudinal centre of the steam chest 1 is positioned the steamintake 42.

l connect the valve chamber 10 with the smaller diameter cylinders 19 bythe ports 113 and afl. l connect the valve chamber 10 with the largerdiameter cylinder 1S by the ports d5 and 46.

n I will now proceed to point out the relations of my various ports andvalve mechanisms to the reciprocation of the compound piston and theapplication of steam or other gas or vapor, so that my invention may, byprevious adjustment of the valve 2 through the ro'd 3, be used as acompound high and low pressure engine or as a high pressure engine ofmaximum power.

lVhen the valve 2 in steam chest 1 is in fixed position to the right, assnown in the i steam chest 1, passes through opening 26,

through pipe 9, into valve chamber 10 through opening 34, between discs39 and 40, through port le into small cylinder 19. Steam also entersthrough openings 16 and 25 through pipe 7 into valve chamber 10 throughopening 32 between discs 37 and 3S through port 46 .into larger cylinder18. rlhus high pressure steam acts simultaneously to drive the largerand smaller diameter portions of the compound piston in the sainedirection.

At the same time the high pressure steam in the small cylinder 19 at theopposite end is exhausted through port 43 into valve chamber 10 throughopening' 29 through pipe 4 through openings 22, 13, 15, and 24 intoexhanstcavity 2l', which connects with the open air. High pressure steamin the opposite end of larger cylinder 18 is exhausted through port- 45into valve chamber 10 between discs 36 and 37 through opening 31 throughpipe 6 into exhaust cavity 27.

On the return stroke, steam enters through openings 14 and 23, throughpipe through opening 30 into valve chamber 10 betweenV discs 35 and 36,through port 4:3, into smaller cylinder 19. Steam' also enters throughopenings 16 and 25 through pipe 7 through opening 32 into valve chamber10 betiveen discs 3i' and 38, through port 4:5, into the larger cylinder18. At the same time the high pressure steam in smaller cylinder 19 atthe opposite end exhausts through port 14 into valve chamber 10 throughtube 11, thr ugh opening 9.9, through pipe through openings 13, 15, and2st into exhaust ivitlv 2T, vwhich is connected ivith the outer air. ghpressure steam in the opposite end a '.-fh sort il into smaller cylinder1 .ame time, steam which has cxh the smaller cylinder 19 at the end,passes through port 43 into chamber 10, through opening 29, ugl. pipefl, through openings 22, 13, 1T, 25, through pipe T, through opening inovalve chamber 10, between discs l? and through port A16, into largercylinder 15%. Sit the same time. steam is exhausted from the oppositeend ot' larger cylinder 1S through port L15 into valve chaniber 10between discs 3G and 3T, through opening 31, through pipe G, intoexhaust cavity QT, and thence to the outer air.

On the return stroke, steam enters through openings let and 23, throughpipe 5, through opening 30 in valve chamber 10, between discs and 36,through port #13 into the sn'ialler cylinder 19. At the same time, steamis exhausted from the smaller cylinder 19 trom the opposite end, throughport. 41st, into valve chamber 10, through ltube 11, through opening`Q9, through pipe el, through open- Y 2i?, 13, 1T, and through pipe 7,rough opening 32, into valve chamber 10, e-tra'een discs and 3S, throughport 15, ito larger cylinder 18. At the same time Team is exhausted fromthe opposite end of rger cylinder 18 through port '16 into valvechanlber 10 between discs 38 and 39, through opening through pipe S,into exhaust cavityy i8, and thence into the outer air.

I do not limit myself further than is indicated in the claims whichfollow.

claim:

A compound gas or vapor engine comprising a jluralitjiy ot compoundcylinders and compound reciprocating pistons therein, a steam chesthaving a plurality ot exit openings, a single valve chamber intermediatethe steam chest and cylinders, a reciprocating valve therein, and a manualiy adjustable valve in the steam chest movable to tivo positions, inone @t which steam is admitted at high pressure through said valvechamber to both ot the compound pistons, and in the other ot which highpressure steam is adnxited to one pistou and exhaust steam to the otherpiston.

i?. fr compound gas er vapor engine comprisng a compound cylinder, acompound re iprocating piston 'ino-Sided with heads ot ili'erentdiameters, a steam chest having a plurality otl exit penings therefrom,a single valve chamber between the cylinder and team ches, areqiprocating valve thc ein, and manually operable means for var,'

ing "l e. admission ot' seam from the steam i to the valve chamler andconsequently L ism reciprocating piston provided with heads oi differentdiameters, a steam chest having a plurality ot exit Openings therefromv`a single valve cha nber between the cylinder and the steam chest, areciprocating valve therein, and a valve in the steam chest manuallyoperable to tivo positions to vary thc aussage of steam through the exitopenings to the valve chamber and thereb,v the operation ot the engine.

s. A compound or vapor engine comprising a compound cylinder, :icompound lecipr rating piston provided vvith heads oi' ditierentdiameters, a steam chest having a plurality of enit openings thcrcirom.a single valve chamber betiveen the cylinder and the steam chest, a'eriprocatingi` valve therein, and a valve iu t ic steam chestm:-.uuallv operable to tivo positions, in one ot which high pressuresteam admitted to the piston heads ot' both diameters, and in the otheror' which high pressure steam is admitted to the smaller piston head andexhaust steam to the larger piston head.

CHARLES LEE (TOOK.

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